Engineering Online MCQ Number 0436 – online study, assignment and exam

Multiple choice question for engineering Set 1 1. Which of the following is not a principle constituent of molding sand? a) Silica b) Aluminum c) Iron oxide d) Copper [learn_more caption=”View Answer”]Answer: d [Reason:] Copper is not a principle constituent of molding sand. Moulding sand is generally composed of silica, aluminum, and iron oxide.[/learn_more] 2….

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